President Donald Trump's former national security adviser, Michael Flynn, has discussed giving testimony in investigations of potential ties between the Trump campaign and Russia, his lawyer says. "General Flynn certainly has a story to tell, and he very much wants to tell it, should the circumstances permit," a statement from lawyer Robert Kelner said. Mr Kelner said no "reasonable person" with legal counsel would answer questions without assurances. Mr Flynn was fired in February for failing to disclose talks with Russia's ambassador, held before Mr Trump took office, about US sanctions on Moscow. The Wall Street Journal reported that Mr Flynn had sought immunity from the Federal Bureau of Investigation and the House and Senate intelligence committees in exchange for his testimony. The newspaper said he had so far found no takers. The House of Representatives panel denied the Journal report, and the FBI declined to comment. The Senate committee did not immediately respond to a